43938216 has 48 divisors (see below), whose sum is σ = 136000800. Its totient is φ = 12553632.

The previous prime is 43938197. The next prime is 43938221. The reversal of 43938216 is 61283934.

43938216 is a `hidden beast` number, since 439 + 3 + 8 + 216 = 666.

43938216 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43086 + ... + 44093.

It is an arithmetic number, because the mean of its divisors is an integer number (2833350).

Almost surely, 2^43938216 is an apocalyptic number.

It is an amenable number.

43938216 is an abundant number, since it is smaller than the sum of its proper divisors (92062584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

43938216 is a wasteful number, since it uses less digits than its factorization.

43938216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87198 (or 87191 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 43938216 is about 6628.5908004643. The cubic root of 43938216 is about 352.8695144309.

The spelling of 43938216 in words is "forty-three million, nine hundred thirty-eight thousand, two hundred sixteen".